Ceylan I, Oktay H
Department of Orthodontics Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
Am J Orthod Dentofacial Orthop. 1995 Jul;108(1):69-75. doi: 10.1016/s0889-5406(95)70068-4.
In the present study, pharyngeal size was investigated on the lateral cephalometric head films of 90 subjects, 45 males and 45 females, having different ANB angles. All of the subjects were aged 13 to 15 years. The films were taken at natural head position, and all were divided into three groups according to the ANB angle: ANB angles smaller than 1 degree, between 1 degree and 5 degrees, and larger than 5 degrees. In addition, each group was also divided into two subgroups according to sex. The effects of the ANB angle and sex on the pharyngeal size were investigated by means of variance analysis. It has been observed that two measurements, hy-apw4 and oropharynx area measurements, were affected by the change of ANB angle, and two other measurements, t-ppw and hy-apw2 measurements, by the sex; and that hy-apw4 measurement and oropharynx area became smaller with the increase of ANB angle.
在本研究中，对90名受试者（45名男性和45名女性）的头颅侧位片上的咽腔大小进行了研究，这些受试者具有不同的ANB角。所有受试者年龄在13至15岁之间。这些片子是在自然头位拍摄的，并且根据ANB角将所有受试者分为三组：ANB角小于1度、1度至5度以及大于5度。此外，每组又根据性别分为两个亚组。通过方差分析研究了ANB角和性别对咽腔大小的影响。据观察，两项测量值，即hy-apw4和口咽腔面积测量值，受ANB角变化的影响，另外两项测量值，即t-ppw和hy-apw2测量值，受性别的影响；并且hy-apw4测量值和口咽腔面积随着ANB角的增加而变小。
